document.addEventListener("DOMContentLoaded", function (event) { const element = document.getElementsByClassName('oap_hairdiagStart_divbtn'); if (element.length > 0) { let urlParams = new URLSearchParams(window.location.search); if (urlParams != "" || urlParams != null) { var keyValuepairs = urlParams.toString().split('&'); var qrUtmfound = 0; keyValuepairs.forEach(function (item, index) { if (item === "utm_source=pos" || item === "utm_medium=qrcode") { qrUtmfound++; } }); if (qrUtmfound == 2) { let relocHref = document.getElementById("hair_color_start_btn").getAttribute("href"); let relocUpdatedurl = relocHref + window.location.search; document.getElementById("hair_color_start_btn").setAttribute("href", relocUpdatedurl); } } } });